| Patents for C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations (31,745) |
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| 04/10/2008 | US20080085842 producing a guar gum powder, the method comprising the steps of: (a) flaking undehusked guar splits; and (b) grinding the flaked, undehusked guar splits to obtain guar gum powder. According to another aspect of the invention, a method is provided for treating a subterranean formation penetrated by a well |
| 04/10/2008 | US20080085841 Canola meal drilling fluid additive |
| 04/10/2008 | DE19842435B4 Chemisch induzierte Stimulationen unterirdischer, kohlenstoffhaltiger Formationen mit wässrigen, oxidierenden Lösungen Chemically induced stimulation of subterranean carbonaceous formations with aqueous oxidizing solutions |
| 04/10/2008 | DE19842424B4 Chemisch induzierte Stimulationen unterirdischer, kohlenstoffhaltiger Formationen mit gasförmigen Oxidationsmitteln Chemically induced stimulation of subterranean carbonaceous formations with gaseous oxidants |
| 04/10/2008 | DE19842407B4 Chemisch induzierte Stimulation der Schlechtenbildung in einer unterirdischen Kohleformation Chemically induced stimulation of bad education in an underground coal formation |
| 04/09/2008 | EP1907503A1 Corrosion inhibitor or intensifier for use in acidizing treatment fluids |
| 04/09/2008 | EP1907502A1 Treatment fluids with improved shale inhibition and methods of use in subterranean operations |
| 04/09/2008 | CN101158280A Oil well high water-bearing layer pressure blocking method |
| 04/09/2008 | CN101158043A Method for synthesizing mannich alkali steel inhibitor mother liquor and steel inhibitor mother liquor |
| 04/09/2008 | CN101157905A Biological plugging releasing oil displacement detergent and production method thereof |
| 04/09/2008 | CN101157850A Preparation of high temperature resistant lubricant for drilling liquid by animal plant oil |
| 04/08/2008 | US7354886 Pumpable multiple phase compositions for controlled release applications downhole |
| 04/08/2008 | US7353870 cementing with an additive comprising at least one material selected shale, zeolite, slag cement, metakaolin into a well bore or in a subterranean formation; vitrified shale provides compressive strengths; free of Portland cement to reduce cost, eliminate waste |
| 04/03/2008 | WO2008038033A1 Methods and compositions relating to the control of the rates of acid-generating compounds in acidizing operations |
| 04/03/2008 | WO2008037976A1 Prevention of latex inversion in saltwater cement compositions for use in subterranean formations and associated compositions |
| 04/03/2008 | WO2008037973A1 Treatment fluids viscosified with modified xanthan and associated methods for well completion and stimulation |
| 04/03/2008 | WO2008037971A1 Surfactant-based fluid loss control agents for surfactant gels and associated fluids and methods |
| 04/03/2008 | WO2008037968A1 Prevention of latex inversion in saltwater cement compositions for use in subterranean formations and associated methods |
| 04/03/2008 | WO2008004172A3 Rheology controlled heterogeneous particle placement in hydraulic fracturing |
| 04/03/2008 | WO2007146348A3 Fluid loss additive with improved rheological properties |
| 04/03/2008 | WO2006087505A3 Spotting fluid compositions and associated methods |
| 04/03/2008 | US20080081771 Aqueous well bore fracturing fluid containing gas component, thickener and such as fatty alcohol ethoxylated sodium sulfate anionic surfactant; low cost; viscosity and foam stability |
| 04/03/2008 | US20080078550 Prevention of latex inversion in saltwater cement compositions for use in subterranean formations and associated methods |
| 04/03/2008 | US20080078549 Methods and Compositions Relating to the Control of the Rates of Acid-Generating Compounds in Acidizing Operations |
| 04/02/2008 | EP1567610B1 Flat rheology drilling fluid |
| 04/02/2008 | CN101153267A Microorganism powder preparation for oil production and method of use thereof |
| 04/02/2008 | CN101153215A Weighting agent for oil field drilling fluids and method of producing the same |
| 04/02/2008 | CN100378190C Nano-water soluble microgel oil displacing material and its preparation method |
| 04/02/2008 | CN100378189C Self-destructing filter cake |
| 04/01/2008 | US7351681 viscosity of the servicing fluid increases as it passes down the well bore due to its temperature increasing; cement slurry, drilling fluid, gravel packing fluid, fracturing fluid, completion fluid, or a work-over fluid; water-soluble hydrophobically modified polymer comprising a hydrophobic substituent |
| 04/01/2008 | US7351680 water soluble mixture comprising shale stabilizer selected from partially hydrolyzed acrylamide-acrylic acid copolymer, polysodium acrylate and hydration buffers comprising humic acid, used as additives to drilling fluids or for producing filter cakes across exposed formations in well bores |
| 04/01/2008 | US7351279 Cement compositions with improved mechanical properties and methods of cementing in subterranean formations |
| 04/01/2008 | US7350571 Methods of preparing and using coated particulates |
| 04/01/2008 | CA2425481C Methods for dewatering shaly subterranean formations |
| 03/27/2008 | WO2008036812A2 Nano-sized particles for stabilizing viscoelastic surfactant fluids |
| 03/27/2008 | WO2008035254A2 Internal breaker for oilfield treatments |
| 03/27/2008 | WO2008035253A2 Oxidative internal breaker for viscoelastic surfactant fluids |
| 03/27/2008 | WO2008034777A1 A process for the manufacture of carbon disulphide |
| 03/27/2008 | WO2008034553A1 Polymers and nanoparticles formulations with shear- thickening and shear-gelling properties for oilfield applications |
| 03/27/2008 | WO2008034461A1 Cementing composition comprising within un-reacted cement |
| 03/27/2008 | WO2007119210A3 Rheology modifiers |
| 03/27/2008 | WO2007072401A3 Well treatment with dissolvable polymer |
| 03/27/2008 | WO2006082360A3 Wellbore treatment fluids having improved thermal stability |
| 03/27/2008 | WO2006077371A3 Methods of plugging a permeable zone downhole using a sealant composition comprising a crosslinkable material and a reduced amount of cement |
| 03/27/2008 | US20080076832 Clay Comprising Charge-Balancing Organic Ions And Nanocomposite Materials Comprising The Same |
| 03/27/2008 | US20080076682 Microemulsions to Convert OBM Filter Cakes to WBM Filter Cakes Having Filtration Control |
| 03/27/2008 | US20080076681 Shale hydration inhibition agent and method of use |
| 03/27/2008 | US20080073082 Well productivity enhancement methods |
| 03/27/2008 | CA2663757A1 A process for the manufacture of carbon disulphide |
| 03/27/2008 | CA2663726A1 Polymers and nanoparticles formulations with shear-thickening and shear-gelling properties for oilfield applications |
| 03/27/2008 | CA2663721A1 Cementing composition comprising within un-reacted cement |
| 03/27/2008 | CA2662210A1 Internal breaker for oilfield treatments |
| 03/26/2008 | EP1902115A1 Water swellable polymers as lost circulation control agents material |
| 03/26/2008 | CN201041004Y Water injection well oil pipe for resisting sulfate-reducing bacteria corrosion coating |
| 03/26/2008 | CN101148582A Hydrophobic association micro-crosslinking polymer oil displacement agent and preparation method thereof |
| 03/26/2008 | CN101148581A Method for preparing high efficiency gemini type oil displacement agent |
| 03/26/2008 | CN101148580A High-temperature high-salt resistant nano emulsion viscosity-reducing agent |
| 03/26/2008 | CN101148579A High temperature resistant circulating micro-foam drilling fluid or completion fluid |
| 03/26/2008 | CN101148578A Strong-inhibition circulating micro-foam drilling fluid or completion fluid |
| 03/25/2008 | US7348451 Additives for inhibiting gas hydrate formation |
| 03/25/2008 | US7348297 Topical defoamer and demulsifier |
| 03/25/2008 | US7347265 Method of forming temporary blocking gel containing guar derivative |
| 03/25/2008 | US7347263 surprising stability in waters having high salt content/salinity makes them useful for injection into subterranean formations to alter the permeability; hydrophilic polymer containing at least two groups which are independently a primary amine group or a secondary amine group and saccharide |
| 03/25/2008 | CA2390647C Method and composition for the triggered release of polymer-degrading agents for oil field use |
| 03/25/2008 | CA2370718C Foamed well cement slurries, additives and methods |
| 03/20/2008 | WO2008033838A2 Precipitated weighting agents for use in wellbore fluids |
| 03/20/2008 | WO2008033592A1 Increased rate of penetration from low rheology wellbore fluids |
| 03/20/2008 | WO2008033591A1 Dispersant coated weighting agents |
| 03/20/2008 | WO2008033273A1 Functionalized clay compositions for aqueous based drilling fluids |
| 03/20/2008 | WO2008033027A1 Method of cementing gas or oil pipeline and hydraulic cement slurry |
| 03/20/2008 | WO2008032049A1 Method to control the physical interface between two or more fluids |
| 03/20/2008 | WO2008032009A1 Methods of well stimulation and completion |
| 03/20/2008 | WO2008031806A1 Swelling inhibitors for clays and shales |
| 03/20/2008 | WO2008004911A3 Proppant and method of production |
| 03/20/2008 | WO2007141519A3 Silicone-tackifier matrixes and methods of use thereof |
| 03/20/2008 | US20080070814 Cement compositions for reducing gas or water migration and methods of using the same |
| 03/20/2008 | US20080070813 Oxidative Internal Breaker for Viscoelastic Surfactant Fluids |
| 03/20/2008 | US20080070812 Viscoelastic zwitterionic surfactant and a synergistic co-surfactant polypropylene oxide and vinyl acetate-vinyl alcohol copolymer, for improving the compatibility of the viscoelastic surfactant with the carbon dioxide; use in subterranean formation |
| 03/20/2008 | US20080070811 Functionalized clay compositions for aqueous based drilling fluids |
| 03/20/2008 | US20080070810 Via emulsion containing immiscible solvent and surfactant, formed with shear |
| 03/20/2008 | US20080070809 Internal Breaker for Oilfield Fluids |
| 03/20/2008 | US20080070808 Aqueous base fluid, viscosifier, permeability modifier, fluid loss control additive, and degradable bridging agent capable of undergoing irreversible degradation downhole; filter cakes |
| 03/20/2008 | US20080070807 Drill-in fluids and associated methods |
| 03/20/2008 | US20080070806 Oxidative Internal Breaker System With Breaking Activators for Viscoelastic Surfactant Fluids |
| 03/20/2008 | US20080070805 Drill-in fluids and associated methods |
| 03/20/2008 | US20080066916 Acidic Internal Breaker for Viscoelastic Surfactant Fluids in Brine |
| 03/20/2008 | CA2657863A1 Functionalized clay compositions for aqueous based drilling fluids |
| 03/19/2008 | EP1900903A1 Improved internal breaker |
| 03/19/2008 | EP1900902A1 Improved internal breaker |
| 03/19/2008 | EP1900705A1 Low density cements for use in cementing operations |
| 03/19/2008 | EP1900704A2 Low density cements for use in cementing operations |
| 03/19/2008 | EP1900703A1 Low density cements for use in cementing operations |
| 03/19/2008 | EP1900412A2 Apparatus and method for screening drilling mud |
| 03/19/2008 | EP1899575A2 Invert emulsion carrier fluid and oil-wetting agent and method of using same |
| 03/19/2008 | EP1781899A4 Alkylxylene sulfonates for enhanced oil recovery processes |
| 03/19/2008 | EP1723198B1 Latex composite particles covered by a mineral phase comprising at least one hydrated alkali earth silicate which is insoluble in water, preparations and uses thereof |
| 03/19/2008 | CN101146888A Soluble deverting agents |
| 03/19/2008 | CN101144011A Microcapsule for retarding oil gas well working fluid additive release and preparation method thereof |
| 03/19/2008 | CN101144010A Method for preparing acid-resistant pressing crack supporting agent |
| 03/19/2008 | CN101144009A Biology modified silicate drilling fluid system |